KR100306509B1 - Dynamic Wireless Communications Systems and Transceivers - Google Patents

Abstract

The communication system includes a plurality of subscribers, each of which has a transceiver including a transmitter and a receiver. In the system, means coupled to each of the transceivers for causing the transmitter to transmit a unique waveform having a predetermined time, frequency and phase code, and each transceiver receives any transmitted waveform from which of the subscribers And means coupled to a receiver, wherein at the same time the remainder of the subscribers having received the waveform can transmit other waveforms simultaneously so that some subscribers can transmit other waveforms simultaneously while transmitting any transmitted waveform rate.

Description

[Name of invention]

Dynamic Wireless Communications Systems and Transceivers

[Technical Field of Invention]

TECHNICAL FIELD The present invention relates to a communication system, and more particularly, to a communication system that increases communication capability while enabling simultaneous transmission and reception of data.

Background Technology

Existing communication systems are operated by callers. That is, such a system enables the calling, i.e., contacting, contacting receiver of any one of the plurality of receivers to receive data from the called receiver and transmit data to the called receiver based on the connection. The caller's commanding system operates to provide one communication link at a time. In this way, one of some codes representing a specified frequency or each location becomes a messenger. For example, in a system such as a telephone system, either one can call the other in the subscriber's wide spectrum. That is, conference call is possible. The subscriber requires dialing of a unique code, so that each subscriber to the system has a code (phone number) that can reach that subscriber. Therefore, the connection can be made only based on the recognition of this code or only for a specific frequency or the like with respect to other systems. Such a system does not allow for independence, ie concurrency of use. Such systems require either a time connection or a compatible frequency to provide communication. Such a system is only capable of communicating with the "calling" side of the "calling" side.

The system described below operates in a manner that provides independence of use while providing omni-directional propagation in a wireless medium. The system can be operated concurrently through multiple sources and essentially permits information exchange due to the use of a time-distributed redundant code signal format that allows timing and access flexibility, concurrency, and independence of users and usage. The system described hereafter is clearly different from the conventional system, because even though the transceiver is transmitting to and receiving from another transceiver, all the transmitted signals support simultaneous transmission provided to each receiving site. .

As noted, this system works the same as the acoustic communication that occurs at a cocktail party. In this way, multiple people can communicate with each other or with someone in the room. Thus, each participant of the cocktail party can communicate with another person at the party and communicate with the other person by speaking, allowing them to listen to or join one or more conversations. There is no communication system operating according to this method in the prior art.

As will be described later, the present communication system allows every single subscriber to access every single outgoing message and receive any desired message, wherein the desired message can be received by one or more units, Can be received when transmitting. Thus, compared with conventional communication systems, the system increases capability by size order by eliminating collisions, providing each subscriber with full accessibility to community transmissions, with each subscriber associated with the subscriber himself. Allows you to choose to receive only data. This system operation is essentially similar to the brief description of the cocktail party described above.

Existing communication equipment does not meet the requirements and appears to be an operational necessity to better coordinate dynamic tactical combat, making the system particularly suitable for military communications. Conventional communication architectures are not suitable for dynamics of coordination functions such as sensor coordinates, enhanced detection, target capture, practice coordination, staging coordination, and shooting down.

The communication scenario for shared information sharing is characterized by a network or group of subscribers having access to other subscriber information. Each subscriber needs the ability to choose to only receive data related to full access to community generated data.

Current channelized radio systems increase the size of their community and block the use of the transmitter due to reception, thus providing only segmented connectivity and not providing full accessibility to the platform's transmit capability. Serious losses are incurred. The perceived need for information sharing between troop elements is real and is expected to overwhelm that capability by increasing the capabilities of existing communications systems. Conventional communication capabilities that cannot support this need inevitably cut off the actual needs of the group, thereby minimizing the sharing of information between groups, thereby reducing combat capability. Conventional radios with reliability in time and frequency boundary bands have insufficient system capability due to insufficient use of time and frequency spectrum resources. The root cause of insufficiency lies in the ability of conventional radios to be unable to receive during simultaneous transmission. As is well known, the transmitter of a radio is always provided as a jamming source or as an interference source for its receiver.

In communities of various platforms and multiple media, inconsistencies in radio circuit architecture, timing, and link protocols prevent efficient data exchange. This structure and protocol has been configured to prevent the transmitter from blocking the reception and the receiver from blocking the transmission. Many forms of continuous access protocols have been developed to address the current necessity for sequential and mutually exclusive transmission and reception.

Data interoperability has significant advantages in the technology that eliminates the need to protect the reception from transmission. High quality, secure, economical, speech-hearing and bandwidth-efficient voice communications have long been required. Previously, low cost voice digitization solutions required too much bandwidth. Low bandwidth solutions required costly processing and were easily affected by noisy acoustic environments. In addition, conventional radios have a restriction that requires complicated pre-allocation of communication resources. Communication designers pre-allocate frequency channels to separate transmissions and receptions when they want to achieve the kind of operation that meets their mission communications needs. Communications that avoid the complexity of communications designers' work, give the platform more power, more autonomy and dynamic access to data determined by the platform, and address the increased need to support real-time combat coordination. System is required.

Many communication systems used today with high performance spread spectrum and / or frequency hopping techniques tend to be less reliable. Radios with good mission reliability are even more important, as the exchange of information between friendly units becomes increasingly important for mission success. The communication systems described above are adaptable to the type of platform, as well as to marine fishing vessels, military guns including aircraft, and other communication systems.

The overall purpose of such a communication system is to increase the communication capabilities of available systems by size order. This system overcomes today's fragmented connectivity by providing full access to community transmissions. The system also allows each subscriber to dynamically select to receive only data messages or voices related to the subscriber. According to such a system, the low cost function is used in the multi-function transceiver, so that voice communication can be made while listening. In addition, such a system provides data compatibility by using a single common fundamental waveform structure and avoiding circuit adaptive timing structures.

This and other aspects of the system provide improved mission reliability and simple maintenance through a radio architecture based on pooled and simplified functional modules and automatic fault isolation.

[Summary of invention]

A preferred communication system is of a type that includes a plurality of subscribers, each subscriber forming a community with a transceiver comprising a transmitter and a receiver, coupled to each transceiver so that the transmitter can transmit a predetermined time, frequency and phase (TFP) code. Means for transmitting an eigenwave having a waveform and a waveform randomly transmitted by any one of the subscribers while another of the subscribers, including a person coupled to the receiver and receiving the waveform, is simultaneously transmitting another eigenwave Means for receiving an arbitrary transmission waveform while the subscriber is transmitting another waveform at the same time.

[Brief Description of Drawings]

1 is a simple block diagram illustrating a community of subscribers to a system in accordance with the present invention.

2 is a block diagram illustrating a typical transceiver used in connection with the present invention.

3 (a) to 3 (c) show a timing format used by the present invention.

4 is a diagram and a timing diagram illustrating a communication scheme in accordance with the present invention.

5 is a block diagram illustrating a group of data elements according to the present invention.

6 is a timing and flow diagram illustrating the use of a processing element pool in accordance with the present invention.

7 illustrates time, frequency, and phase patterns used in accordance with the present invention.

Referring to FIG. 1, there are shown a number of units or users each represented by a letter T-R indicating transmit-receive, ie a transceiver (transceiver) such as units 10 and 11. In addition, as will be described later, each unit, such as units 10 and 11, can communicate with any unit, can receive any data being transmitted, and can transmit and receive at the same time. Although the unit is shown arranged in a circular form, the model is simply arbitrary and is only needed to describe the operation of the system and to show significant differences from conventional linear, ie simultaneously one transmitter, one directional channel modules. As described later, each unit, such as unit 10 or 11, may be a ground or sea plane capable of communicating with any other unit. The size and geometry of the configuration shown in FIG. 1 is optional and is referred to as a community to illustrate.

Multiple transceiver units, or T-R units 10 and 11, allow the community to exchange information to receive and transmit important information from other people or platforms within the community. In this way, the unit maximizes the participant's ability to transmit potentially important positioning signals at high power for outgoing data, voice and others. The other may be any of the units that need or want to receive this information. Each T-R unit has the ability to receive important information related to or coming from it, usually at a low signal level. In this way, each T-R unit can transmit information related to a particular T-R unit at a high power level and simultaneously receive at a low power level. This information exchange orientation is made possible by a time-distributed redundant code signal format that allows timing and access flexibility, concurrency, and user and usage independence. It is clearly different from conventional orientations that maximize the occupancy of the community of frequency channels by requiring coordinated use of time-intensive magnetic blocking signal formats.

Referring to FIG. 2, there is shown a block diagram of a typical T-R unit, such as units 10 or 11 used in units of a community as shown in FIG. Note that each of the T-R units in FIG. 1 is in the format shown in FIG.

The platform 20 shown in dashed lines in FIG. 2 is shown. The term platform refers to the type of unit that a particular transceiver is on or associated with, such as an aircraft, a navy ship or a ground transporter such as a truck, jeep, tank, or the like. Depending on the platform 20, the unit may be programmed in other ways.

As shown, coupled to the platform is the central control module 21. The central control module 21 initializes the transceiver unit based on the initialization load or control / display input from the platform. This essentially means what data function should be supported in the receiving unit or radio. As will be explained later, the platform interfacing with the central control module 21 has certain requirements in the display method which can be located in the dashboard or in the cockpit. Thus, each module is programmed through the central control module 21 to enable the module to function at the most efficient level in terms of platform requirements. As shown, the central control module 21 interfaces with the module 22 designated as the resource control device. The central control module and the resource control module include a mini or microprocessor and include a memory and a control device.

The resource control module 22 interfaces with the data or signal control pool 23 and also with the message and voice buffer module 24. Since the message and voice buffer module 24 communicates with the platform 20 bidirectionally, the platform 20 can transmit and receive messages from the message and voice buffer 23. This happens not only for voice but also for digital messages. The message and voice buffer 24 may also be in communication with the data or signal control pool 23 via a bidirectional channel.

As can be seen from FIG. 2, the data or signal control pool 23 consists of a kind of module called a group of data elements. The data element modules are arranged in groups and each T-R unit has many of these groups. As shown in FIG. 2, there are 15 data elements associated with the T-R module. There are five modules with three data elements in each modular group. The function of the data element will be described later. As shown, each data element may receive input from the resource control module 22 and a message and voice buffer 24, and may communicate with or transmit data to each of the modules 22 and 24, respectively. can do. The exchange of information between the data element group and the resource control module 22 and between the data element group and the message and voice buffer 24 is bidirectional.

As shown, each data element group and each data element within that group interfaces with, for example, the matrix switch 30. This matrix switch 30 enables coupling to the pulse control module 31, the pulse control and correlator module 32, and the additional pulse control correlator module 33. The pulse control module 31 is coupled to the transmitter 34, the pulse control and correlator module 32 is coupled to the first receiver 35, and the pulse control and correlator module 33 is coupled to the second receiver 36. Combined. It will be appreciated that each T-R unit has one or more receivers, and thus one or more pulse control and correlator modules such as modules 32 and 33. It will also be appreciated that a particular T-R unit may have a modular group of about five data elements or three or more data elements in that modular group.

Each of the transmitter module 34 and receiver modules 35, 36 are coupled to an RF front end module 39, which module 39 interfaces with the antenna 40. The antenna 40 is used for transmission and reception. The RF front end module 39 may receive an RF power signal from the transmitter 34 and transmit a signal from the antenna 40 to transmit the RF power signal through the antenna 40.

The transmission operation is as follows. The platform 20 initiates a transmission sequence by sending a message or voice data to the message and voice buffer 24. Initialization of transmission requests through the platform 20 may be made by an operator of the vehicle or more typically by a computer within the platform. The central control module 21 instructs the resource control unit 22 to start the transmission sequence. As shown, both central control module 21 and resource control module 22 include a microprocessor and operate as a computer to be described later. The resource control module 22 searches the data or signal control pool 23 to find a portable data element such as DE1 to DE6, etc. within the group. The resource control module 22 selects the available data element DE to instruct it to initiate a signal waveform sequence comprising a 'TAG' and a preamble preceding all data transmissions, also known as "STRING". The selected data element performs associated signal processing to determine the initial waveform of the signal, the time, frequency and phase code for each pulse of the preamble.

As will be explained later, the preamble informs the community of the transmission and allows synchronization for the transmission. Signal processing in the transceiver shown in FIG. 2 occurs while the data element is preparing to distribute the transmitted signal into frequency and phase codes, and only in time. Just before the scheduled time for transmission of each preamble pulse, the time, frequency and phase code parameters of the signal pulses are communicated by the data element to the pulse control unit 31 of the transmitter via the matrix switch 30. The pulse control module 31 operates to tune the frequency synthesizer or local oscillator of the transmitter and controls the modulation and transmission of the signal preamble pulses in real time. The selected data element continues processing until all preamble pulses have been sent. The data element can then return to the control pool 23 to use for another assignment. While the preamble is being transmitted, the resource control module 22 instructs another data element from the data or signal control pool 23 to initiate the tag-waveform sequence of the signal. The tag following every preamble transmission contains encoded data that identifies an upcoming data transmission and provides a transmission confidentiality (TRANSEC) seed used to generate the data waveform. The selected data element performs TRANSEC related signal processing to determine the time, frequency and phase code of each pulse in the tag. In addition, encoded redundant information is also added.

As the transmission time of the pulse approaches, the time, frequency and PN code parameters for the signal pulses are passed through the matrix switch 30 to the transmitter's pulse control module 31. As with the preamble, the pulse control module 31 provides real time control during tag pulse transmission and is then available. The data element continues the transfer process until all tag pulses have been sent. The data elements are then returned to the control pool 23 and 15 are available for other allocations. While tag transmission is in progress, the resource control module 22 selects another data element from the pool for the data string (waveform sequence). The message and voice buffer 24 transmits the data for transmission to selected data elements that perform data encoding and signal processing related TRANSECs. Since both contain data words, the data sequence is essentially identical to the tag sequence described above. The data element continues the data processing until the data transmission is finished. This terminates the signal transmission sequence. Multiple concurrent transmission sequences may occur. For example, suppose a long voice transmission is in progress when new data is received from the platform. Another transmission sequence is disclosed. Another data element is assigned to the operation in parallel with the transmission in progress. Each data element in operation accesses transmitter pulse control 31, respectively, and transmits a pulse parameter via matrix switch 30.

The above description briefly describes the transmission mode of the module shown in FIG. While receiving, the radio is synchronized to community (network) time through net entry processing. Assume that the radio has terminated the net entry continuously. The resource control module 22 then assigns a data element to the reception process for the preamble of the signal. The preamble signal can be received at any time and assigned continuously. The pulses of the preamble are separated into times greater than the time they propagate to the farthest subscriber. The data element continues to execute preamble signal processing and selects one of the receiver's pulse and correlator elements, such as 32 and 33, for the reception and correlation of the current preamble pulse via matrix switch 30. Receivers such as 35 and 36 report each arrival time (TOA) returning to all detection pulses and data elements, which is open for the full range of disintegration times.

Each preamble has N pulses (N is selected to be 16), and preamble detection is declared when M of nearly equal ranges of N pulses are detected. The process of detecting multiple concurrent preambles from the community is also performed by the data elements. The detection of multiple simultaneous preambles uses an algorithm that detects preamble pulses based on frequency, amplitude and time. The data elements are assigned or selected by the matrix switch and coupled to the pulse control and correlator to perform such processing. The TOA of the detected preamble is reported to the resource control module 22 which instructs to select a data element from the pool 23 to start signal processing for the tag waveform. The data element performs TRANSEC related signal processing to determine the time, frequency and phase code for each pulse of the tag during transmission. These parameters are transmitted in pulse units to one of the receiver pulse control and correlator elements 32, 33 via matrix switch 30 for the reception, correlation, and data demodulation of each tag pulse. The pulse control and correlators 32, 33 send back the detected data characters to their control data elements. When all pulses of a code word are received, the code word is decoded to eliminate character errors or deletions. The data element sends the tag TOA and its decoded data to the resource control module 22 and returns to an idle state.

As described with the transmission sequence, the T-R unit is controlled by the interpretation of the central control module 21 on the initialization load or control / display input from the platform 20. The platform 20 instruction identifies which data type the radio receives and which data type it should transmit to the platform 20. The central control module 21 formats and sends a list of relevant data types to the resource control module 22. The data of the received tag comprises identification means of subsequent string data or voice transmission and a TRANSEC seed used by the transmitter for data waveform generation. The tag data ID is compared with a list of platforms of related data. If they do not match, the data is not tracked. If there is a match, the resource control module 22 selects the data element for reception, and gives that data element the predicted TOA and TRANSEC seed of the data waveform. The data element uses the transmitter's TRANSEC key to determine the time, frequency and phase code for each data pulse. Like the tag, these parameters are transmitted per pulse to available receivers such as 35 and 36 via the associated pulse control and correlators 32 and 33. The received characters are formed into words, decoded and sent to the message and voice buffer 24. Thereafter, the data is sent to the platform 20 which terminates the data receiving sequence. Multiple simultaneous receive operations are a rule rather than an exception. Transmission is initiated when data is available and not at a pre-allocated time.

In this way, the complexity of communication designers allocating time slots is eliminated as in time division multiple access (TDMA) systems.

In large communities, there may be multiple simultaneous transmissions from members of the community. Thus, multiple data elements are to be assigned simultaneously to the reception of the preamble, tag and reputation data. The size of the data or signal control pool 23 is mainly determined from the predicted simultaneous occurrence of the received tag and associated data sequence. The data or signal control pool 23 also supports transmission. The required number of receiver and pulse control and correlator combinations is determined from the number of pulses expected to be received at the same time. As shown in FIG. 2, the structure of the TR unit is, for example, a pool of three data elements arranged in rows in a group, and a pool of receivers and pulse control and correlator modules 32 and 33, such as 35 and 36. Include. This structure has the advantage that the module has commonality and there is standby isolation and bypass of the faulty common module, such as faulty data elements or faulty receivers, as part of normal operation.

Referring to Figures 3 (a) through 3 (c), the waveform structure and timing used in the system are shown. As will be described later, the time-dispersed signal waveform of the system removes the basic road block for efficient information exchange between various members of the community, for example as shown in FIG. Information exchange in today's wireless community is hampered by the inefficiency of conventional wireless technology. Conventional transceivers using time-concentrated signals have a two-pole transmitter (intra-transmission) duty factor of 0.00% (when not operating or not transmitting) and 1.00% (when not operating or receiving). It is limited to and cannot be received during transmission. Just as frequency variance can avoid the deleterious effects of frequency-intensive jammers, time variance and redundant coding of transmitted signals can avoid the effects of time-intensive magnetic jamming occurring at the transmitter itself. By redistributing and redundantly coding the transmitted signal in frequency and more fundamentally in time, the transceiver according to the present invention operates with an intermediate (internally transmitted) transmitter duty factor that allows for reliable reception while simultaneously transmitting. Achieving the ability to receive while transmitting can eliminate circuit structures and protocols whose primary purpose is to separate time-intensive transmissions and receptions. Avoidance of separation schemes and protocols allows for wider use of the time and frequency spectrum, thereby providing at least an increase in order of magnitude in useful capacity. In addition, separation schemes and protocol avoidance eliminate the complex design for comrade separation and internal community access.

In addition, the system simplifies communication design by not requiring the designer to predict and allocate resources for peak mission dynamics. Full access to the community's data voice transmissions by each subscriber in the community results from the ability to transmit and receive as well as the avoidance of isolation structures and protocols. All data transmissions are driven by signal waveforms that identify the data. Full access to data means that each community subscriber receives all signal waveforms to announce upcoming data transmissions. Since the transceiver can receive (signal) at any time, it receives signal waveforms from all other subscribers. As with conventional radios, nothing is blocked by channelization, magnetic jamming transmission, or circuit structure and protocol. In addition, pseudo-random time, frequency and phase code variance signals are compatible with antijam (A / J) and low interferability (LPI) techniques.

As described later, for example, as shown in FIG. 2, the transceiver's signaling capability informs each subscriber of an upcoming data transmission and dynamically selects each subscriber to receive only the data (message or voice) associated with that subscriber. To be able. In this way, the receiving resource is not wasted waiting to receive data or receiving irrelevant data. In contrast, a conventional receiver is pre-assigned even if it is a function (e.g. voice) that operates only a small percentage of time.

Referring to FIG. 3, the timing and waveform structures used in such a system are shown in FIGS. 3 (a) to 3 (c). As shown in FIG. 3 (a), the transmitted waveform consists of a signal group and a data string group. Basically, a signal group consists of a tag group consisting of a preamble and two separate tags. A group of strings is used to transmit or receive a data channel of voice or message. As shown, a string group consists of up to four independent 16 kbps strings that are orthogonal in time. This string can be combined into a set of strings (two or more strings) to support a higher data rate than one string can support. Even though four strings operate, the data pulses in the string are orthogonal sets in time and do not interfere with each other.

The data string shown in FIG. 3 (a) shows an example in which four strings are grouped into three setfun groups. For example, strings A and B are used to support the 32 kbps air-track report channel, string C is used for the 16 kbps voice channel, and string D is used for the 16 kbps report channel. Thus, data strings can be used in combination or independently. Although 16 kbps is shown as a typical data string, other bit rates may be used. As shown in FIG. 3 (a), an information string is basically a series of data pulses that are cryptographically distributed in a spread spectrum space by using time, frequency and, for example, direct spreading. String data is encrypted cryptographically. All parameters defining the characteristics of a string group, including a portion of the seed data used for cipher detection and decryption of the string, are broadcast into the preceding signal group. The signal group shown in FIG. 3 (a) is composed of a series of cryptographically distributed pulses and starts with a preamble used for coarse acquisition.

Cryptographic pulse position modulation is used for community-wide preamble waveforms that minimize mutual interference even when five or six participants simultaneously broadcast the preamble. The preamble shown in FIG. 3 (a) is followed by a first two tag groups identifying the type of data channel embedded in the upcoming data string. The first tag is used by the receiving subscriber to determine whether all or some of the string group warrants reception, or not at all. The tag embedded in the data is encrypted. The encryption seed used for the first tag signal recovery and decryption is known by the community. The first tag also includes an encrypted source independent seed that is used to recover and decrypt the second tag group of the upcoming string. The second tag defines the difference in division of each string into groups, the length of each string, and the attributes of other strings needed to receive and reconstruct channelized data.

In such a system, as shown in FIG. 1, any participant in the community can always transmit data, thereby allowing quick and open accessibility to the communication network. Thus, such a system does not require a-priori mission set-up of transmission allocation opportunity time, which has been required in prior art systems.

Referring again to Figure 3 (a), a typical transmission consists of a signal and data string designated to panel A shown in Figure 3 (a). There is a series of pages, which are defined in 10ms time intervals.

A page interval consisting of a number of bin internvals is shown in FIG. 3 (b). One page has 800 blank gaps. Panel C shown in FIG. 3 (c) shows a data relationship for a data channel in which two 16 kbps strings, string A and string B, are shown. Strings C and D are shown in column form. It can be seen that the page consists of data characters as well as tracking information. It also shows how data in each bin is stored, as basically defined, and includes specific algorithms used for other pages of data shown in the format. Therefore, the overall structure of the waveform used in such a system is shown in FIGS. 3 (a) to 3 (c). Referring to FIG. 4, a typical scenario is depicted of five or six in-flight and interflight participants and home tag and string activity. The complex transmit waveform is shown in panel B. Each participant needs all signals, including preambles and tags, and the release of data strings to the site or location (community). The top histogram represents the composite (unfiltered) tag and string activity of the home, for example, in aircraft # 3D shown in module 40. Module 41 shows activities such as aircraft IB and 2B.

As shown, each participant reads a tag to identify the data type, and receives only the data strings appropriate for the assignment of tasks through the filter. As shown, the filtered string activity of the aircraft 3D in module 40 is peak in 10 concurrent data strings, and therefore the radio only needs 10 data elements to meet its peak data requirements. This is basically about panel B. Each aircraft shown can transmit and receive any strings and tags in the community shown. As shown, the waveform for the 16 kbps data rate is shown, but the system will adjust other waveforms and data rates as described above.

Referring again to FIG. 2, as will be appreciated, the number of data elements represented in the data or signal control pool 23 is a function of a platform such as, for example, an aircraft or a land vehicle. Although all transceiver configurations are similar, the number of data elements and the reception mode can be changed to match the data rate required by the host platform. Thus, data elements, which are components of the main T-R unit, operate independently as signal processors of strings, tags or preambles. These elements, which are data elements, are dynamically allocated to receive or transmit one string (tag) at a time. This assignment is made under the control of the resource control module 22 operating in conjunction with the central control module 21. The pool of fifteen data elements shown in FIG. 2 allows simultaneous transmission and reception of fifteen independent strings and / or tags. The data elements are networked to a set of receiving and transmitting nodes designated by the non-interfering crossbar matrix switch 30. These receiving and transmitting nodes are not associated with any particular string or tag, but are provided in a pool of data elements in pulses.

Referring to FIG. 5, a typical data element group basically consists of three data elements, namely data element # 1, data element # 2 and data element # 3 as shown in FIG. A detailed block diagram is shown. In essence, the data element consists of first and second controllers 50, 51 with embedded hardware. The controller operates in conjunction with a master gate array 52 that interfaces with random memories 53 and 54 as programmable arrays. As shown, each of the data elements, such as 55 and 56, has the exact same configuration as the data elements described above initially. The output of each data element, like the message and voice buffers, interfaces with the common bus 60 to the resource control processor 22 shown in FIG. Each data element has its own output lines 61, 62, 63 to be controlled and assigned. The data elements allow one in each group to communicate with the other and interface with the module 57 designated by the interface logic with the gate array.

The interface module 57 includes electrically erasable programmable read only memory (EPROM) modules as well as appropriate interface logic such that the interface module 57 controls the programmable gate array for the purpose of executing data element tasks as described above. . Module 57 interfaces with a lookup table in the form of EPROM to enable programming of the data element module with respect to task information and the like. Interface module 57 is coupled to a matrix switch, such as switch 30 in FIG. 2 and includes one bus for each data element. Thus, as shown in FIG. 5, there are three buses coupled to the matrix switch for the three data elements. In addition, the input indicated on the lead 65 is transmitted from the pulse control and correlator shown in FIG. 2, i.e., the PCC 33 or 32, to each data element module.

As described above, the preamble signal can be received at any time. The preamble pulses are separated by time, and the data elements perform preamble signal processing continuously and select one of the receiver pulse control and correlator elements for reception and correlation of the current preamble pulses via the matrix switch.

As shown in FIG. 5, the data element includes processing elements such as controllers 50 and 51, and interface module 57 also has its own processing capabilities. As described above, each preamble has a plurality of pulses, and preamble detection is declared when a predetermined number of pulses within approximately the same range are detected. High performance processing, which must detect multiple concurrent preambles from the community, is also performed by the data elements shown in FIG. Referring to FIG. 6, a block diagram illustrating a pool of signal control data processing elements 70 corresponding to the pool 23 shown in FIG.

As shown in FIG. 6, a transmitted signal consisting of a tag and a string is shown. As can be seen from the tag and string signals shown, the purpose of the present system is to transmit a specified and different series of pulses by having an inherent time, frequency and phase pattern (TFP). In this way, as shown by module 78, each pattern defined essentially in the signal channel is unique and consists of a unique three dimensional pattern for each string rosin. In this way, by recognizing the pattern to be transmitted with the signal information, the receiver can continue to select the required data. Thus, each data processing element, i.e., a data element used in a group of data elements, may be assigned to recognize a plurality of patterns as well as different patterns, and to select only those data needed for that pattern and a particular platform.

Thus, an important aspect of this system is the redundancy distribution, which allows for the selection of inherent time, frequency, and phase (TFP) patterns, which enable the distinctive selection of unique three-dimensional patterns, as in the example shown in FIG. It is in transmitting. Three-dimensional patterns are described and shown in terms of frequency and time. For example, each receiving element is determined by the shape or nature of the waveform, such as how the pattern is formed, allowing each receiving element to select the pattern and continue to respond to the pattern. This processing is done by the assigned data element group.

For example, as shown in FIG. 6, the first pulse denoted by the reference numeral 80 includes a second pulse 81, a third pulse 82, another pulse 83, and a broken line connection. Is followed. This represents a specific pattern. Thus, the pattern may be selected after the pattern 78 is known by the data element responsive to the signal channel. To achieve this result, the platform has selection criteria as represented by module 77. Since these selection criteria are programmed or selected by the platform, the selection represented by module 73 is performed by selecting a string identifier suitable for the platform related filter. The platform may select a string of related data or messages as represented by module 71, and the string of data is sent to the platform as represented by module 72. The data processing element may respond to synchronization. The sync detection module 76 means that sync detection is performed by an assigned data element that also has a seed sequence stored therein to recognize the sync pattern. In this way, if the nature of the transmission is known, for example as in the example of FIG. 3, the data element will respond to the tag data by synchronous detection.

As shown in FIG. 6, the tag is configured with high access rate synchronization followed by a string ID and a TFP code. The TFP code is a unique time frequency phase code and defines a specific signal pattern, such as the example shown in FIG. Another processing element, tag collection module 75, controls the reception of tags. This allows the selection module 73 to select a tag associated with a particular platform and thus to select a string associated with that tag as represented by module 71. Once a tag is defined and it is an acceptable tag, the string collection module 71 controls the reception of the string with the TFP pattern as shown in FIG. For example, there are many TFP patterns, but the system immediately knows that it is possible to select a TFP pattern that is relevant to any TFP pattern or platform that depends on the tag, and then collect the pattern and its associated string of data. Can be.

Referring back to FIG. 7, a plot of frequency versus time is shown. A unique three dimensional pattern, shown at 90 in FIG. 7, is shown. The dashed pulse pattern is unique in that it appears in time, frequency and phase (TFP), and thus is different from any other pattern, including for example various different crosshatch elements. By optimally using the three-dimensional view of time, frequency and phase, any of the transmitted patterns can be selected in space. In this way, each TFP pattern can be determined and selected. In addition, when using the TFP, each platform can transmit and receive simultaneously. The reason for this is that the platform transmits in a completely different TFP pattern and receives when transmitting. Therefore, based on the strictly randomness of the system, transmission and reception based on such a pattern are possible, and interference, for example, when executed by a conventional system is reliably eliminated.

Claims (20)

In a communication system of the type that operates for a plurality of subscribers forming a related community, and includes a plurality of transceivers used by the plurality of subscribers, each transceiver comprising a transmitter and a receiver, wherein the transmitter is time, Means for enabling transmission of a unique waveform having a predetermined coding that is a function of frequency and phase; Means for allowing the receiver to receive a randomly transmitted waveform from a transceiver used by one of the subscribers while at the same time transmitting another unique waveform from an associated transceiver, and having such a configuration any subscriber Makes it possible to use its transceiver to receive a waveform transmitted from a transceiver being used by any one of the plurality of subscribers while simultaneously transmitting another waveform, the transmitted waveform comprising a message sent. A series of pulses, each pulse of the series of pulses being configured in a unique three-dimensional pattern in a space representing the predetermined coding and having a tag following the preamble, wherein the tag is an upcoming data transmitter of the transmission message. Contains encoded data that identifies And the preamble is a communication system characterized in that it operates to notify the transmission in order to allow the subscriber to any synchronization in the transmission. The communication system of claim 1, wherein the tag defines a seed used to generate a waveform. 2. The method of claim 1, wherein each preamble comprises N pulses, and wherein the transmitted message comprises N pulses and M pulses, where M and N are positive integers and M is at least 10 greater than N. A communication system characterized by being twice as large. 2. A communication system according to claim 1, wherein the receiver further comprises means for responding to any transmission message, receiving and detecting the transmission message and providing an indication of the arrival time of the detected message. 5. The communication system of claim 4, wherein the detected message is a preamble, further comprising means for processing the received signal in response to the detection of the preamble to detect the tag waveform. 6. The communication system of claim 5, further comprising means for processing the waveform in response to the tag waveform to determine the predetermined coding for each pulse associated with the tag. 2. The method of claim 1, wherein the tag comprises a first and a second tag, the first tag being means for identifying a type of data included in the transmitted message. The data and second tag information included in the message. And seed information necessary for decoding the second tag, wherein the second tag comprises means for defining dividing the data contained in the message into groups. 2. The apparatus of claim 1, wherein each transceiver comprises antenna means having an RF front end operable to transmit and receive signals coupled to respective transmitters and receivers, the transmitter being driven by the antenna through the front end. Coupled to pulse control means for applying a predetermined pulse to the transmitter to be transmitted; Each transceiver further comprises means for being coupled to said pulse control means for selecting a pulse format for transmission of said message. 9. The apparatus of claim 8, wherein the means coupled to the pulse control means comprises: a first central control processor responsive to the subscriber to provide a control output signal indicative of a transmission sequence associated with the subscriber; A resource control processor coupled to the first central control processor and operative to initiate a transmission sequence; A plurality of data elements having an input port coupled to the resource control processor and an output port coupled to the pulse control means, wherein the resource control processor selects any of the data elements to transmit and transmit the pulse format; A communication system operative to initiate processing. 10. The apparatus of claim 9, wherein each transceiver; At least one receiver coupled to the RF front end and having an input and an output for receiving a signal; A pulse control and correlator having an input coupled to an output of the receiver and receiving and correlating the signal; Means for detecting the preamble of the waveform coupled to the pulse control and correlator. 11. The communication system of claim 10, wherein said means coupled to said pulse control and correlator comprises a selected data element. 2. The communication system of claim 1, wherein said unique waveform comprises a series of RF pulses containing said transmitted message. A transceiver for receiving a first transmit signal having a unique pulse pattern as a function of time, frequency and phase, and simultaneously transmitting another signal with another unique pulse pattern as a function of time, frequency and phase. Front end means operative to receive a signal to be transmitted or to transmit any signal; First processor means coupled to the front end means for monitoring a unique pulse pattern transmitted in response to the first transmission signal; Second processor means coupled to the front end means to supply another unique signal having a pulse pattern as a function of time, frequency and phase, such that the pattern can be transmitted while the first transmission signal is received. To; Wherein each pulse pattern includes a preamble pulse section for determining time, frequency, and phase for each pulse of the pattern, and a tag section for identifying transmission and data included in the transmission. 14. The transceiver of claim 13 wherein said second processor means comprises message and voice buffer means operative to receive data to be transmitted. 14. The transceiver of claim 13 wherein said front end means comprises an antenna for transmitting and receiving signals. 14. The transceiver of claim 13 wherein the first processor means comprises first means for detecting the preamble and second means for detecting the tag. 14. The transceiver of claim 13 wherein the second processor means comprises first means for forming a preamble and second means for providing a tag location for the transmitted pulse pattern. 14. The apparatus of claim 13, further comprising a plurality of processors coupled to the first and second processor means, wherein one or more processors including the plurality of processors comprise signals in accordance with time, frequency and phase relationships that characterize the pulses being processed. And selectable by one of the first and second processors to process the processor. 14. The transceiver of claim 13 wherein the pulses in the transmitted pulse train are randomly distributed in time, frequency and phase. 14. The transceiver of claim 13 wherein said unique pulse pattern consists of a series of RF pulses.